public override void Initialize(DrawArgs drawArgs)
{
if (!base.IsOn)
{
return;
}
foreach (RenderableObject ro in base.m_children)
{
MyChart c = ro as MyChart;
// if c is not in current view frustum
if (!this.IsInViewFrustum(drawArgs.WorldCamera, c))
{
continue;
}
// is c is not initialized , initialize c.
if (!c.Initialized)
{
//double layerLatitudeRange = this.east - this.west;
//double chartLatitudeRange = layerLatitudeRange*c.Diameter/MyCharts.WindowWidth;
//Angle chartAngle = World.ApproxAngularDistance(
// Angle.FromDegrees(c.Latitude),
// Angle.FromDegrees(c.Longitude),
// Angle.FromDegrees(c.Latitude + chartLatitudeRange),
// Angle.FromDegrees(c.Longitude)
// );
//double chartDiameter = chartAngle.Radians*
// (drawArgs.WorldCamera.WorldRadius
// + c.DistanceAboveSurface);
//c.Scale = (float) (chartDiameter/2.0);
c.Initialize(drawArgs);
}
}
base.RenderPriority = RenderPriority.Custom;
base.Inited = true;
}
public override void Update(DrawArgs drawArgs)
{
if (!base.IsOn)
{
return;
}
// donot do update if not initialized
if (!base.Initialized)
{
this.Initialize(drawArgs);
}
foreach (RenderableObject ro in base.m_children)
{
MyChart c = ro as MyChart;
//if (c == null) {
// ro.Dispose();
// base.Remove(ro.Name);
// continue;
//}
if (!this.IsInViewFrustum(drawArgs.WorldCamera, c))
{
continue;
}
c.Update(drawArgs);
}
}
public override void Render(DrawArgs drawArgs)
{
if (!base.IsOn)
{
return;
}
// if not initialized, initialize and return, wait for next
// render
if (!base.Initialized)
{
//this.Initialize(drawArgs);
return;
}
foreach (RenderableObject ro in base.m_children)
{
MyChart c = ro as MyChart;
if (c == null)
{
continue;
}
if (c.Scale == 0)
{
base.Inited = false;
return;
}
if (!this.IsInViewFrustum(drawArgs.WorldCamera, c))
{
continue;
}
c.Render(drawArgs);
this.OnRendered(c);
}
}
private bool IsInViewFrustum(CameraBase camera, MyChart c)
{
if (c.Position
== Vector3.Empty)
{
c.Position = MathEngine.SphericalToCartesian(c.Latitude, c.Longitude, camera.WorldRadius);
}
return(camera.ViewFrustum.ContainsPoint(c.Position));
}
/// <summary>
/// HighLight a chart in this layer.
/// </summary>
/// <param name="itemName">
/// name of the chart to operate
/// </param>
/// <param name="highLight">
/// indicates whether highlight the chart.
/// </param>
public override void Highlight(string itemName, bool highLight)
{
MyChart chart = base.GetObject(itemName) as MyChart;
if (chart != null)
{
chart.HighLight = highLight;
}
}
/// <summary>
/// if ro is chart, then add it to list.
/// </summary>
/// <param name="ro"></param>
public override void Add(RenderableObject ro)
{
MyChart c = ro as MyChart;
if (c == null)
{
ro.Dispose();
return;
}
c.ParentWorld = this.ParentWorld;
base.m_children.Add(ro);
// the first chart added to this layer
if (base.Count == 1)
{
this.east = c.Longitude;
this.west = c.Longitude;
this.south = c.Latitude;
this.north = c.Latitude;
}
else
{
if (this.east
< c.Longitude)
{
this.east = c.Longitude;
}
if (this.west
> c.Longitude)
{
this.west = c.Longitude;
}
if (this.north
< c.Latitude)
{
this.north = c.Latitude;
}
if (this.south
> c.Latitude)
{
this.south = c.Latitude;
}
}
base.Inited = false;
}
protected virtual void OnRendered(MyChart c)
{
string localLayerName = base.Name.Substring(base.Name.IndexOf("_") + 1);
if (c.IsMouseOverCaption ||
c.IsMouseOverChart)
{
if (c.MouseEntered == false)
{
this.OnMouseEnterItem(localLayerName, c.Name);
c.MouseEntered = true;
}
}
else
{
if (c.MouseEntered == true)
{
this.OnMouseLeaveItem(localLayerName, c.Name);
c.MouseEntered = false;
}
}
}
private bool IsInViewFrustum(CameraBase camera, MyChart c)
{
if (c.Position
== Vector3.Empty) {
c.Position = MathEngine.SphericalToCartesian(c.Latitude, c.Longitude, camera.WorldRadius);
}
return camera.ViewFrustum.ContainsPoint(c.Position);
}
protected virtual void OnRendered(MyChart c)
{
string localLayerName = base.Name.Substring(base.Name.IndexOf("_") + 1);
if (c.IsMouseOverCaption
|| c.IsMouseOverChart) {
if (c.MouseEntered == false) {
this.OnMouseEnterItem(localLayerName, c.Name);
c.MouseEntered = true;
}
}
else {
if (c.MouseEntered == true) {
this.OnMouseLeaveItem(localLayerName, c.Name);
c.MouseEntered = false;
}
}
}
private static void AddMyChart(XPathNodeIterator iter, World parentWorld, RenderableObjectList parentRenderable, Cache cache)
{
if (iter.Count > 0) {
while (iter.MoveNext()) {
string isOnStr = iter.Current.GetAttribute("ShowAtStartup", "");
string name = getInnerTextFromFirstChild(iter.Current.Select("Name"));
string latStr = getInnerTextFromFirstChild(iter.Current.Select("Latitude/Value"));
string lonStr = getInnerTextFromFirstChild(iter.Current.Select("Longitude/Value"));
string distStr = getInnerTextFromFirstChild(iter.Current.Select("DistanceAboveSurface"));
string diaStr = getInnerTextFromFirstChild(iter.Current.Select("Diameter"));
string heightStr = getInnerTextFromFirstChild(iter.Current.Select("Height"));
Color chartColor = getColor(iter.Current.Select("ChartColor"));
string scaleStr = getInnerTextFromFirstChild(iter.Current.Select("Scale"));
string typeStr = getInnerTextFromFirstChild(iter.Current.Select("ChartType"));
string capTxt = getInnerTextFromFirstChild(iter.Current.Select("Caption/CaptionText"));
FontDescription capFontDesc = getDisplayFont(iter.Current.Select("Caption/DisplayFont"));
Color capColor = getColor(iter.Current.Select("CaptionColor"));
string clkUrl = getInnerTextFromFirstChild(iter.Current.Select("ClickableUrl"));
string minViewRng = getInnerTextFromFirstChild(iter.Current.Select("MinViewRange"));
string maxViewRng = getInnerTextFromFirstChild(iter.Current.Select("MaxViewRange"));
MyChart c = new MyChart(name, (float) ParseDouble(latStr), (float) ParseDouble(lonStr), (float) ParseDouble(distStr));
c.Diameter = (float) ParseDouble(diaStr);
c.Height = (float) ParseDouble(heightStr);
c.ChartColor = chartColor;
c.ChartType = typeStr;
c.Caption = capTxt;
c.CaptionFont = new Font(capFontDesc.FaceName, 9.0F);
c.CaptionColor = capColor;
c.ClickableUrl = clkUrl;
c.MinViewRange = (float) ParseDouble(minViewRng);
c.MaxViewRange = (float) ParseDouble(maxViewRng);
MyCharts.WindowWidth = 1024;
MyCharts myCharts = parentRenderable as MyCharts;
myCharts.Add(c);
c.ParentWorld = parentWorld;
c.ParentList = myCharts;
c.Scale = (float) ParseDouble(scaleStr);
}
}
}